1,1,1,2-Tetraphenylethane
- Formula: C26H22
- Molecular weight: 334.4529
- IUPAC Standard InChIKey: KGSFMPRFQVLGTJ-UHFFFAOYSA-N
- CAS Registry Number: 2294-94-2
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Benzene, 1,1',1'',1'''-(1-ethanyl-2-ylidyne)tetrakis-; Ethane, 1,1,1,2-tetraphenyl-
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 417. | K | N/A | Brewster, Patterson, et al., 1954 | Uncertainty assigned by TRC = 2. K; TRC |
Tfus | 416.75 | K | N/A | Smith and Andrews, 1931 | Uncertainty assigned by TRC = 0.3 K; m.p. with /Hg thermometer; TRC |
Tfus | 414.25 | K | N/A | Smith and Andrews, 1931 | Uncertainty assigned by TRC = 0.5 K; f.p. with thermocouple; TRC |
Quantity | Value | Units | Method | Reference | Comment |
ΔsubH° | 31.7 | kcal/mol | V | Beckhaus, Dogan, et al., 1990 | ALS |
ΔsubH° | 31.55 | kcal/mol | N/A | Beckhaus, Dogan, et al., 1990 | DRB |
ΔsubH° | 31.69 ± 0.50 | kcal/mol | GS | Beckhaus, Dogan, et al., 1990 | AC |
Reduced pressure boiling point
Tboil (K) | Pressure (atm) | Reference | Comment |
---|---|---|---|
551.7 | 0.028 | Weast and Grasselli, 1989 | BS |
Enthalpy of sublimation
ΔsubH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
30.21 ± 0.41 | 434. | HSA | Beynon and Nicholson, 2002 | AC |
30.76 ± 0.50 | 370. | GS | Beckhaus, Dogan, et al., 1990 | Based on data from 340. to 400. K.; AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Brewster, Patterson, et al., 1954
Brewster, J.H.; Patterson, J.W.; Fidler, D.A.,
Reductions at Metal Surfaces III. Clemensen Reduction of Some Sterically- hindered Ketones,
J. Am. Chem. Soc., 1954, 76, 6368. [all data]
Smith and Andrews, 1931
Smith, R.H.; Andrews, D.H.,
Thermal Energy Studies I. Phenyl Derivatives of Methane, Ethane and Some Related Compounds,
J. Am. Chem. Soc., 1931, 53, 3644. [all data]
Beckhaus, Dogan, et al., 1990
Beckhaus, H.D.; Dogan, B.; Schaetzer, J.; Hellmann, S.; Ruchardt, C.,
Thermische stabilitat und bildungsenthalpie von 1,2,2,2- und 1,1,1,2- tetraphenylethan. - Die stabilisierungsenergien von benzhydryl- und triphenylmethyl-radikalen,
Chem. Ber., 1990, 123, 137-144. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Beynon and Nicholson, 2002
Beynon, J.H.; Nicholson, G.R.,
A radioactive ionization gauge and its application to the measurement of latent heat of vaporization,
J. Sci. Instrum., 2002, 33, 10, 376-380, https://doi.org/10.1088/0950-7671/33/10/302
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔsubH Enthalpy of sublimation ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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